Cassiopeia

Key facts

• Played almost exclusively Mid (93.8% of its games).
• Peak popularity in 2017: 353 games, 51.3% win rate.
• Noticeably more picked on the red side (56.2% of its picks).
• Games featuring it run 0.9 min longer than average (34m 48s against 33m 54s).
• Best duo: alongside Zac, 70.6% over 34 games (+19.4 pts against its own average).
• Hardest matchup: against LeBlanc in Mid, 44.4% over 45 duels.
• Longest win streak: 11, from July 16, 2017 to July 22, 2017.
• The team that played it most is Team Liquid (47 games, 53.2%).

Play profile

Year by year

Bars show pick volume, the line shows win rate. The dashed line marks 50%.

Duos

Allies seen at least 25 times alongside Cassiopeia. The gap is measured against its own 51.2% average, not against 50%. The Role column is the one held by the ally.

Strongest

Ally	Role	Games	WR	Gap
Zac	Jungle	34	70.6%	+19.4
Cho'Gath	Top	38	68.4%	+17.2
Skarner	Jungle	42	66.7%	+15.5
Kog'Maw	Bot	43	65.1%	+13.9
Galio	Support	35	62.9%	+11.7
Pantheon	Jungle	26	61.5%	+10.3
Shen	Top	108	61.1%	+9.9
Kalista	Bot	64	59.4%	+8.2

Weakest

Ally	Role	Games	WR	Gap
Wukong	Jungle	30	30%	-21.2
Aphelios	Bot	32	34.4%	-16.8
Nami	Support	41	36.6%	-14.6
Elise	Jungle	72	37.5%	-13.7
Ambessa	Top	30	40%	-11.2
Kennen	Top	30	40%	-11.2
Miss Fortune	Bot	45	40%	-11.2
Leona	Support	45	40%	-11.2

Lane matchups

Direct opposition in the same role, over at least 25 duels.

Favourable

Opponent	Role	Duels	WR	Gap
Karma	Mid	25	56%	+4.8
Orianna	Mid	76	55.3%	+4.1
Viktor	Mid	108	54.6%	+3.4
Corki	Mid	70	54.3%	+3.1
Vladimir	Mid	54	53.7%	+2.5
Ahri	Mid	43	53.5%	+2.3
Ryze	Mid	253	53.4%	+2.2
Taliyah	Mid	63	52.4%	+1.2

Unfavourable

Opponent	Role	Duels	WR	Gap
LeBlanc	Mid	45	44.4%	-6.8
Galio	Mid	67	46.3%	-4.9
Jayce	Mid	30	50%	-1.2
Syndra	Mid	64	50%	-1.2
Azir	Mid	65	52.3%	+1.1
Taliyah	Mid	63	52.4%	+1.2
Ryze	Mid	253	53.4%	+2.2
Ahri	Mid	43	53.5%	+2.3

Leagues and teams

Common questions

What is the best duo with Cassiopeia?

Zac, played Zac as Jungle: 70.6% wins over 34 games together, +19.4 points against Cassiopeia's 51.2% average.

Which champion counters Cassiopeia in Mid?

LeBlanc in Mid: Cassiopeia only wins 44.4% of their 45 direct duels, -6.8 points below its average.

Which lane does Cassiopeia play in pro?

Mainly Mid, which accounts for 93.8% of its 1,473 major-league games, with a 51.8% win rate.

Is Cassiopeia good in professional play?

Over 1,473 major-league games since 2012, Cassiopeia holds a 51.2% win rate. Its most played season was 2017 with 353 games, and it was last picked on August 5, 2026.

Streaks and records